--- loncom/homework/randomlabel.pm 2001/12/04 15:17:56 1.8
+++ loncom/homework/randomlabel.pm 2002/07/18 19:40:15 1.29
@@ -1,7 +1,7 @@
# The LearningOnline Network with CAPA
# random labelling tool
#
-# $Id: randomlabel.pm,v 1.8 2001/12/04 15:17:56 albertel Exp $
+# $Id: randomlabel.pm,v 1.29 2002/07/18 19:40:15 sakharuk Exp $
#
# Copyright Michigan State University Board of Trustees
#
@@ -57,22 +57,34 @@
# (21,54) : $GroupTwo[2] = "TEXT-2"
# ===========================================
package Apache::randomlabel;
+use Apache::lonnet;
use strict;
+use Apache::edit;
-sub BEGIN {
+BEGIN {
&Apache::lonxml::register('Apache::randomlabel',('randomlabel','labelgroup','location','label'));
}
+sub check_int {
+ # utility function to do error checking on a integer.
+ my ($num,$default) = @_;
+ $default = 100 if (! defined($default));
+ $num =~ s/\s+//g; # We dont need no stinkin white space!
+ # If it is a real, just grab the integer part.
+ ($num,undef) = split (/\./,$num) if ($num =~ /\./);
+ # set to default if what we have left doesn't match anything...
+ $num = $default unless ($num =~/^\d+$/);
+ return $num;
+}
+
sub start_randomlabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
- $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=
- '/res/adm/includes/GLabel.class';
-
+ push (@Apache::lonxml::extlinks, '/res/adm/includes/GLabel.class');
+ push (@Apache::lonxml::namespace,'randomlabel');
my $bgimg= &Apache::lonxml::get_param('bgimg',$parstack,$safeeval);
-
if ( $bgimg !~ /^http:/ ) {
- $Apache::lonxml::extlinks[$#Apache::lonxml::extlinks+1]=$bgimg;
+ push (@Apache::lonxml::extlinks,$bgimg);
$bgimg=&Apache::lonnet::filelocation($Apache::lonxml::pwd[-1],$bgimg);
if ($bgimg =~ /$Apache::lonnet::perlvar{'lonDocRoot'}/) {
$bgimg=~s/$Apache::lonnet::perlvar{'lonDocRoot'}//;
@@ -83,27 +95,32 @@ sub start_randomlabel {
}
my $code = &Apache::lonxml::get_param('code',$parstack,$safeeval);
my $codebase = &Apache::lonxml::get_param('codebase',$parstack,$safeeval);
- my $w= &Apache::lonxml::get_param('width',$parstack,$safeeval);
- my $h= &Apache::lonxml::get_param('height',$parstack,$safeeval);
+ my $w= &check_int(&Apache::lonxml::get_param('width',$parstack,$safeeval));
+ my $h= &check_int(&Apache::lonxml::get_param('height',$parstack,$safeeval));
my $texwidth= &Apache::lonxml::get_param('texwidth',$parstack,$safeeval);
if (!$code) { $code='GLabel.class'; }
if (!$codebase) { $codebase='/res/adm/includes/'; }
$Apache::randomlabel::tlabel_cnt=0;
$Apache::randomlabel::ilabel_cnt=0;
if ($target eq 'web') {
- $result.="<applet code=\"$code\" codebase=\"$codebase\" width=\"$w\" height=\"$h\">";
- $result.="<param name=\"bgimg\" value=\"$bgimg\">";
+ $result.="<applet code=\"$code\" codebase=\"$codebase\" width=\"$w\" height=\"$h\">\n";
+ $result.="<param name=\"bgimg\" value=\"$bgimg\">\n";
} elsif ($target eq 'tex') {
- $bgimg=~s/(.gif|.jpg)$/.ps/;
- $result.='\vspace*{2mm} \\ \noindent \epsfxsize='.$texwidth.' \epsffile{'.
- $bgimg.'}\setlength{\unitlength}{1mm} \\ \begin{picture}(0,0)(0,-5)';
+ $bgimg=~s/(.gif|.jpg)$/.eps/;
+ $bgimg= &Apache::lonnet::filelocation($bgimg);
+ $bgimg=~s/http:\/[^\/]*/\/home\/httpd\/html/;
+ $bgimg=~s/\/$//;
+ $result.='\vspace*{2mm} \noindent \epsfxsize='.$texwidth.' mm \epsffile{'.
+ $bgimg.'}\setlength{\unitlength}{1mm} \begin{picture}('.$texwidth.','.$texwidth*$h/$w.')'
} elsif ($target eq 'edit') {
$result.=&Apache::edit::tag_start($target,$token);
- $result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).'<br />'.
- &Apache::edit::text_arg('Width(pixel):','width',$token,4).
- &Apache::edit::text_arg('Height(pixel):','height',$token,4).
- &Apache::edit::text_arg('TeXWidth(mm):','texwidth',$token,4).
- '</td></tr><tr><td colspan="3">';
+ $result.=&Apache::edit::text_arg('Image:','bgimg',$token,75).' ';
+ $result.=&Apache::edit::browse('bgimg').' ';
+ $result.=&Apache::edit::search('bgimg').'<br />'.
+ &Apache::edit::text_arg('Width(pixel):' ,'width' ,$token,6).
+ &Apache::edit::text_arg('Height(pixel):','height' ,$token,6).
+ &Apache::edit::text_arg('TeXWidth(mm):' ,'texwidth',$token,6).
+ &Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
'bgimg','width','height',
@@ -120,16 +137,15 @@ sub end_randomlabel {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
my $count;
-
-
+ pop @Apache::lonxml::namespace;
if ($target eq 'web') {
$count = $Apache::randomlabel::tlabel_cnt;
- if( $count != 0) { $result.= "<param name=\"count\" value=\"$count\">"; }
+ if( $count != 0) { $result.= "<param name=\"COUNT\" value=\"$count\">\n"; }
$count = $Apache::randomlabel::ilabel_cnt;
- if( $count != 0) { $result.= "<param name=\"icount\" value=\"$count\">"; }
- $result .= "</applet><BR />";
+ if( $count != 0) { $result.= "<param name=\"ICOUNT\" value=\"$count\">\n"; }
+ $result .= "</applet>\n<BR />";
} elsif ($target eq 'tex') {
- $result='\end{picture}';
+ $result='\end{picture}\\\\';
} elsif ($target eq 'edit') {
$result.=&Apache::edit::end_table;
}
@@ -150,11 +166,12 @@ sub start_labelgroup {
@Apache::randomlabel::ycoord = ();
@Apache::randomlabel::value = ();
@Apache::randomlabel::label_arr = ();
+ @Apache::randomlabel::decription = ();
} elsif ($target eq 'edit') {
$result.=&Apache::edit::tag_start($target,$token);
$result.=&Apache::edit::text_arg('Name:','name',$token).
&Apache::edit::select_arg('Type:','type',['text','image'],$token).
- '</td></tr><tr><td colspan="3">';
+ &Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
'name','type');
@@ -167,7 +184,7 @@ sub start_labelgroup {
}
sub add_vars {
- my ($name,$order,$label,$labelorder,$value,$safeeval) = @_;
+ my ($name,$order,$label,$labelorder,$value,$image,$safeeval) = @_;
my $code = '${'.$name."}{'".($order+1)."'}='".$label."';";
my $out=Apache::run::run($code,$safeeval);
if ($value) {
@@ -176,6 +193,10 @@ sub add_vars {
$code = '${'.$name."}{'labelvalue_".($labelorder+1)."'}='".$value."';";
$out=Apache::run::run($code,$safeeval);
}
+ if ($image) {
+ my $code = '${'.$name."}{'image_".($order+1)."'}='".$image."';";
+ my $out=Apache::run::run($code,$safeeval);
+ }
$code = '${'.$name."}{'numlocations'}='".($order+1)."';";
$out=Apache::run::run($code,$safeeval);
}
@@ -198,16 +219,18 @@ sub end_labelgroup {
my $y = $Apache::randomlabel::ycoord[$_];
my $value = $Apache::randomlabel::value[$_];
if( $type eq 'text') {
- &add_vars($gname,$_,$label,$idx_arr[$_],$value,$safeeval);
+ &add_vars($gname,$_,$label,$idx_arr[$_],$value,'',$safeeval);
$str = 'LB'.$Apache::randomlabel::tlabel_cnt;
$xstr = 'X'.$Apache::randomlabel::tlabel_cnt;
$ystr = 'Y'.$Apache::randomlabel::tlabel_cnt;
$Apache::randomlabel::tlabel_cnt += 1;
} elsif ( $type eq 'image') {
- &add_vars($gname,$_,$idx_arr[$_],$idx_arr[$_],$value,$safeeval);
- $str = 'LB'.$Apache::randomlabel::ilabel_cnt;
- $xstr = 'X'.$Apache::randomlabel::ilabel_cnt;
- $ystr = 'Y'.$Apache::randomlabel::ilabel_cnt;
+ &add_vars($gname,$_,
+ $Apache::randomlabel::description[$idx_arr[$_]],
+ $idx_arr[$_],$value,$label,$safeeval);
+ $str = 'IMG'.$Apache::randomlabel::ilabel_cnt;
+ $xstr = 'IX'.$Apache::randomlabel::ilabel_cnt;
+ $ystr = 'IY'.$Apache::randomlabel::ilabel_cnt;
$Apache::randomlabel::ilabel_cnt += 1;
} else {
&Apache::lonxml::error('Unknown type of label :'.$type.':');
@@ -215,7 +238,7 @@ sub end_labelgroup {
if ($target eq 'web') {
$result .= '<param name="' . $str . '" value="'.$label.'">';
$result .= '<param name="' . $xstr . '" value="'.$x.'">';
- $result .= '<param name="' . $ystr . '" value="'.$y.'">';
+ $result .= '<param name="' . $ystr . '" value="'.$y.'">'."\n";
}
}
} elsif ($target eq 'tex') {
@@ -244,15 +267,20 @@ sub end_labelgroup {
my $x = $Apache::randomlabel::xcoord[$i];
my $y = $Apache::randomlabel::ycoord[$i];
my $value = $Apache::randomlabel::value[$i];
- my $tcX=$x*($texwidth/$wwidth);
- my $tcY=$TY1-$y*($TY1/$wheight)-2;
+# my $tcX=$x*($texwidth/$wwidth) - $texwidth;
+ my $tcX=($x)*($texwidth/$wwidth);
+# my $tcY=$TY1-$y*($TY1/$wheight)-2;
+ my $ratio=($wwidth > 0 ? $wheight/$wwidth : 1 );
+ my $tcY=$TY1-$y*($TY1/$wheight)+$texwidth*$ratio;
$tcX=sprintf('%.2f',$tcX);
$tcY=sprintf('%.2f',$tcY);
$result.='\put('.$tcX.','.$tcY.'){\normalsize \bf '.$label.'}'."\n";
if( $type eq 'text') {
- &add_vars($gname,$i,$label,$idx_arr[$i],$value,$safeeval);
+ &add_vars($gname,$i,$label,$idx_arr[$i],$value,'',$safeeval);
} elsif ( $type eq 'image') {
- &add_vars($gname,$i,$idx_arr[$i],$idx_arr[$i],$value,$safeeval);
+ &add_vars($gname,$i,
+ $Apache::randomlabel::description[$idx_arr[$i]],
+ $idx_arr[$i],$value,$label,$safeeval);
} else {
&Apache::lonxml::error('Unknown type of label :'.$type.':');
}
@@ -266,8 +294,8 @@ sub end_labelgroup {
# <location x="123" y="456" value="some value"/>
sub start_location {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
- my $x= &Apache::lonxml::get_param('x',$parstack,$safeeval);
- my $y= &Apache::lonxml::get_param('y',$parstack,$safeeval);
+ my $x= &check_int(&Apache::lonxml::get_param('x',$parstack,$safeeval),50);
+ my $y= &check_int(&Apache::lonxml::get_param('y',$parstack,$safeeval),50);
my $value= &Apache::lonxml::get_param('value',$parstack,$safeeval);
my $result='';
push(@Apache::randomlabel::xcoord,$x);
@@ -278,7 +306,7 @@ sub start_location {
$result.=&Apache::edit::text_arg('X:','x',$token,4).
&Apache::edit::text_arg('Y:','y',$token,4).
&Apache::edit::text_arg('Value:','value',$token).
- '</td></tr><tr><td colspan="3">';
+ &Apache::edit::end_row();
$result.=&Apache::edit::end_table;
} elsif ($target eq 'modified') {
my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
@@ -302,18 +330,44 @@ sub end_location {
sub start_label {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result='';
+ my $type = &Apache::lonxml::get_param('type',$parstack,$safeeval,-2);
if ($target eq 'web' || $target eq 'tex' ||
$target eq 'grade' || $target eq 'answer') {
my $ltext=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
+ $ltext=&Apache::run::evaluate($ltext,$safeeval,$$parstack[-1]);
+ if ($type eq 'image') {
+ &Apache::lonxml::debug("Turning $ltext and $Apache::lonxml::pwd[-1]");
+ $ltext="http://$ENV{'SERVER_NAME'}".&Apache::lonnet::hreflocation($Apache::lonxml::pwd[-1],
+ $ltext);
+ &Apache::lonxml::debug("into $ltext");
+ my $description = &Apache::lonxml::get_param('description',
+ $parstack,$safeeval);
+ push(@Apache::randomlabel::description,$description);
+ }
push(@Apache::randomlabel::label_arr,$ltext);
} elsif ($target eq 'edit') {
- $result.=&Apache::edit::tag_start($target,$token);
+ $result.=&Apache::edit::tag_start($target,$token,"$type Label");
my $text=&Apache::lonxml::get_all_text("/label",$$parser[-1]);
- $result.='</td></tr><tr><td colspan="3">'.
- &Apache::edit::editfield('',$text,'',20,1).
- &Apache::edit::end_table();
+ if ($type eq 'image') {
+ $result.=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
+ $result.=&Apache::edit::text_arg('Description:','description',$token);
+ }
+ if ($type eq 'text') { $result.="Label Text:"; }
+ if ($type eq 'image') { $result.="Path to image:"; }
+ $result.=&Apache::edit::editline('',$text,'',20).
+ &Apache::edit::end_table();
} elsif ($target eq 'modified') {
my $text=$$parser[-1]->get_text("/label");
+ $result = '<label>';
+ if ($type eq 'image') {
+ my $constructtag=&Apache::edit::get_new_args($token,$parstack,$safeeval,
+ 'description');
+ if ($constructtag) {
+ $result = &Apache::edit::rebuild_tag($token);
+ } else {
+ $result = $token->[4];
+ }
+ }
$result.=&Apache::edit::modifiedfield($token);
}
return $result;